Re: 2.6.2-rc2-bk1 oopses on boot (ACPI patch)

[Alessandro Suardi]

Linus Torvalds wrote:
> On Wed, 28 Jan 2004, Alessandro Suardi wrote:
>
> > Already reported, but I'll do so once again, since it looks like
> >  in a short while I won't be able to boot official kernels in my
> >  current config...
> >
> > 	http://www.ussg.iu.edu/hypermail/linux/kernel/0312.3/0442.html
>
>
> Can you make adjust_jiffies() print out its arguments (it's in 
> drivers/cpufreq/cpufreq.c).
>
> It looks like cpufreq_scale() gets a divide-by-zero or an overflow on one 
> of
>
> 	l_p_j_ref, l_p_j_ref_freq, ci->new
>
> and just printing out those values would be interesting.

Assuming the late hour (hmm, early by now) hasn't crossed my
 eyes entirely the three above entities are %lu, %u, %u... so
 this line

printk("CPUFREQ DEBUG: [%lu] [%u] [%u]\n", l_p_j_ref, l_p_j_ref_freq, ci->new);

 as both first and last instruction in adjust_jiffies() turns
 up the same values, which are 1773568, 1, 0.


Side-note, since master penguin is looking... after the oops
 all SysRq stuff keeps working - except Alt-SysRq-B; the atkbd.c
 code tells me the keyboard says "too many keys pressed". K, T,
 P just do their job fine.
(yeah, okay, Alt-SysRq-O prints Power Off but obviously doesn't).


Thanks,

--alessandro

 "Two rivers run too deep
  The seasons change and so do I"
      (U2, "Indian Summer Sky")

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